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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 | /* * linux/drivers/video/cfb32.c -- Low level frame buffer operations for 32 bpp * truecolor packed pixels * * Created 28 Dec 1997 by Geert Uytterhoeven * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. */ #include <linux/module.h> #include <linux/tty.h> #include <linux/console.h> #include <linux/string.h> #include <linux/fb.h> #include <video/fbcon.h> #include <video/fbcon-cfb32.h> /* * 32 bpp packed pixels */ void fbcon_cfb32_setup(struct display *p) { p->next_line = p->line_length ? p->line_length : p->var.xres_virtual<<2; p->next_plane = 0; } void fbcon_cfb32_bmove(struct display *p, int sy, int sx, int dy, int dx, int height, int width) { int bytes = p->next_line, linesize = bytes * fontheight(p), rows; u8 *src, *dst; if (sx == 0 && dx == 0 && width * fontwidth(p) * 4 == bytes) { fb_memmove(p->fb_info->screen_base + dy * linesize, p->fb_info->screen_base + sy * linesize, height * linesize); return; } if (fontwidthlog(p)) { sx <<= fontwidthlog(p)+2; dx <<= fontwidthlog(p)+2; width <<= fontwidthlog(p)+2; } else { sx *= fontwidth(p)*4; dx *= fontwidth(p)*4; width *= fontwidth(p)*4; } if (dy < sy || (dy == sy && dx < sx)) { src = p->fb_info->screen_base + sy * linesize + sx; dst = p->fb_info->screen_base + dy * linesize + dx; for (rows = height * fontheight(p); rows--;) { fb_memmove(dst, src, width); src += bytes; dst += bytes; } } else { src = p->fb_info->screen_base + (sy+height) * linesize + sx - bytes; dst = p->fb_info->screen_base + (dy+height) * linesize + dx - bytes; for (rows = height * fontheight(p); rows--;) { fb_memmove(dst, src, width); src -= bytes; dst -= bytes; } } } static inline void rectfill(u8 *dest, int width, int height, u32 data, int linesize) { int i; while (height-- > 0) { u32 *p = (u32 *)dest; for (i = 0; i < width/4; i++) { fb_writel(data, p++); fb_writel(data, p++); fb_writel(data, p++); fb_writel(data, p++); } if (width & 2) { fb_writel(data, p++); fb_writel(data, p++); } if (width & 1) fb_writel(data, p++); dest += linesize; } } void fbcon_cfb32_clear(struct vc_data *conp, struct display *p, int sy, int sx, int height, int width) { u8 *dest; int bytes = p->next_line, lines = height * fontheight(p); u32 bgx; dest = p->fb_info->screen_base + sy * fontheight(p) * bytes + sx * fontwidth(p) * 4; bgx = ((u32 *)p->dispsw_data)[attr_bgcol_ec(p, conp)]; width *= fontwidth(p)/4; if (width * 16 == bytes) rectfill(dest, lines * width * 4, 1, bgx, bytes); else rectfill(dest, width * 4, lines, bgx, bytes); } void fbcon_cfb32_putc(struct vc_data *conp, struct display *p, int c, int yy, int xx) { u8 *dest, *cdat, bits; int bytes = p->next_line, rows; u32 eorx, fgx, bgx, *pt; dest = p->fb_info->screen_base + yy * fontheight(p) * bytes + xx * fontwidth(p) * 4; if (fontwidth(p) <= 8) cdat = p->fontdata + (c & p->charmask) * fontheight(p); else cdat = p->fontdata + ((c & p->charmask) * fontheight(p) << 1); fgx = ((u32 *)p->dispsw_data)[attr_fgcol(p, c)]; bgx = ((u32 *)p->dispsw_data)[attr_bgcol(p, c)]; eorx = fgx ^ bgx; for (rows = fontheight(p); rows--; dest += bytes) { bits = *cdat++; pt = (u32 *) dest; fb_writel((-(bits >> 7) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 6 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 5 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 4 & 1) & eorx) ^ bgx, pt++); if (fontwidth(p) < 8) continue; fb_writel((-(bits >> 3 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 2 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 1 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits & 1) & eorx) ^ bgx, pt++); if (fontwidth(p) < 12) continue; bits = *cdat++; fb_writel((-(bits >> 7) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 6 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 5 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 4 & 1) & eorx) ^ bgx, pt++); if (fontwidth(p) < 16) continue; fb_writel((-(bits >> 3 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 2 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 1 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits & 1) & eorx) ^ bgx, pt++); } } void fbcon_cfb32_putcs(struct vc_data *conp, struct display *p, const unsigned short *s, int count, int yy, int xx) { u8 *cdat, *dest, *dest0, bits; u16 c; int rows, bytes = p->next_line; u32 eorx, fgx, bgx, *pt; dest0 = p->fb_info->screen_base + yy * fontheight(p) * bytes + xx * fontwidth(p) * 4; c = scr_readw(s); fgx = ((u32 *)p->dispsw_data)[attr_fgcol(p, c)]; bgx = ((u32 *)p->dispsw_data)[attr_bgcol(p, c)]; eorx = fgx ^ bgx; while (count--) { c = scr_readw(s++) & p->charmask; if (fontwidth(p) <= 8) cdat = p->fontdata + c * fontheight(p); else cdat = p->fontdata + (c * fontheight(p) << 1); for (rows = fontheight(p), dest = dest0; rows--; dest += bytes) { bits = *cdat++; pt = (u32 *) dest; fb_writel((-(bits >> 7) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 6 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 5 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 4 & 1) & eorx) ^ bgx, pt++); if (fontwidth(p) < 8) continue; fb_writel((-(bits >> 3 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 2 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 1 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits & 1) & eorx) ^ bgx, pt++); if (fontwidth(p) < 12) continue; bits = *cdat++; fb_writel((-(bits >> 7) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 6 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 5 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 4 & 1) & eorx) ^ bgx, pt++); if (fontwidth(p) < 16) continue; fb_writel((-(bits >> 3 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 2 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits >> 1 & 1) & eorx) ^ bgx, pt++); fb_writel((-(bits & 1) & eorx) ^ bgx, pt++); } dest0 += fontwidth(p)*4; } } void fbcon_cfb32_revc(struct display *p, int xx, int yy) { u8 *dest; int bytes = p->next_line, rows; dest = p->fb_info->screen_base + yy * fontheight(p) * bytes + xx * fontwidth(p) * 4; for (rows = fontheight(p); rows--; dest += bytes) { switch (fontwidth(p)) { case 16: fb_writel(fb_readl(dest+(4*12)) ^ 0xffffffff, dest+(4*12)); fb_writel(fb_readl(dest+(4*13)) ^ 0xffffffff, dest+(4*13)); fb_writel(fb_readl(dest+(4*14)) ^ 0xffffffff, dest+(4*14)); fb_writel(fb_readl(dest+(4*15)) ^ 0xffffffff, dest+(4*15)); /* FALL THROUGH */ case 12: fb_writel(fb_readl(dest+(4*8)) ^ 0xffffffff, dest+(4*8)); fb_writel(fb_readl(dest+(4*9)) ^ 0xffffffff, dest+(4*9)); fb_writel(fb_readl(dest+(4*10)) ^ 0xffffffff, dest+(4*10)); fb_writel(fb_readl(dest+(4*11)) ^ 0xffffffff, dest+(4*11)); /* FALL THROUGH */ case 8: fb_writel(fb_readl(dest+(4*4)) ^ 0xffffffff, dest+(4*4)); fb_writel(fb_readl(dest+(4*5)) ^ 0xffffffff, dest+(4*5)); fb_writel(fb_readl(dest+(4*6)) ^ 0xffffffff, dest+(4*6)); fb_writel(fb_readl(dest+(4*7)) ^ 0xffffffff, dest+(4*7)); /* FALL THROUGH */ case 4: fb_writel(fb_readl(dest+(4*0)) ^ 0xffffffff, dest+(4*0)); fb_writel(fb_readl(dest+(4*1)) ^ 0xffffffff, dest+(4*1)); fb_writel(fb_readl(dest+(4*2)) ^ 0xffffffff, dest+(4*2)); fb_writel(fb_readl(dest+(4*3)) ^ 0xffffffff, dest+(4*3)); /* FALL THROUGH */ } } } void fbcon_cfb32_clear_margins(struct vc_data *conp, struct display *p, int bottom_only) { int bytes = p->next_line; u32 bgx; unsigned int right_start = conp->vc_cols*fontwidth(p); unsigned int bottom_start = conp->vc_rows*fontheight(p); unsigned int right_width, bottom_width; bgx = ((u32 *)p->dispsw_data)[attr_bgcol_ec(p, conp)]; if (!bottom_only && (right_width = p->var.xres-right_start)) rectfill(p->fb_info->screen_base+right_start*4, right_width, p->var.yres_virtual, bgx, bytes); if ((bottom_width = p->var.yres-bottom_start)) rectfill(p->fb_info->screen_base+(p->var.yoffset+bottom_start)*bytes, right_start, bottom_width, bgx, bytes); } /* * `switch' for the low level operations */ struct display_switch fbcon_cfb32 = { setup: fbcon_cfb32_setup, bmove: fbcon_cfb32_bmove, clear: fbcon_cfb32_clear, putc: fbcon_cfb32_putc, putcs: fbcon_cfb32_putcs, revc: fbcon_cfb32_revc, clear_margins: fbcon_cfb32_clear_margins, fontwidthmask: FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16) }; #ifdef MODULE MODULE_LICENSE("GPL"); int init_module(void) { return 0; } void cleanup_module(void) {} #endif /* MODULE */ /* * Visible symbols for modules */ EXPORT_SYMBOL(fbcon_cfb32); EXPORT_SYMBOL(fbcon_cfb32_setup); EXPORT_SYMBOL(fbcon_cfb32_bmove); EXPORT_SYMBOL(fbcon_cfb32_clear); EXPORT_SYMBOL(fbcon_cfb32_putc); EXPORT_SYMBOL(fbcon_cfb32_putcs); EXPORT_SYMBOL(fbcon_cfb32_revc); EXPORT_SYMBOL(fbcon_cfb32_clear_margins); |